[PATCH] ps3: disable display flipping during mode changes

If ps3fb is available, we have to disable display flipping while changing the
audio or video mode.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 14 insertions, 1 deletions

diff --git a/drivers/ps3/ps3av_cmd.c b/drivers/ps3/ps3av_cmd.c
index b3d1bc40a1b8..21c97c80aa2e 100644
--- a/drivers/ps3/ps3av_cmd.c
+++ b/drivers/ps3/ps3av_cmd.c
@@ -22,6 +22,7 @@
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <asm/ps3av.h>
+#include <asm/ps3fb.h>
 #include <asm/ps3.h>
 
 #include "vuart.h"
@@ -851,8 +852,9 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len)
 {
         int res;
 
-        /* avb packet */
+        ps3fb_flip_ctl(0);      /* flip off */
 
+        /* avb packet */
         res = ps3av_do_pkt(PS3AV_CID_AVB_PARAM, send_len, sizeof(*avb),
                            &avb->send_hdr);
         if (res < 0)
@@ -864,6 +866,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len)
                          res);
 
       out:
+        ps3fb_flip_ctl(1);      /* flip on */
         return res;
 }
 
diff --git a/include/asm-powerpc/ps3fb.h b/include/asm-powerpc/ps3fb.h
index 3f121fe4010d..8933adf535b8 100644
--- a/include/asm-powerpc/ps3fb.h
+++ b/include/asm-powerpc/ps3fb.h
@@ -41,4 +41,14 @@ struct ps3fb_ioctl_res {
         __u32 num_frames; /* num of frame buffers */
 };
 
+#ifdef __KERNEL__
+
+#ifdef CONFIG_FB_PS3
+extern void ps3fb_flip_ctl(int on);
+#else
+static inline void ps3fb_flip_ctl(int on) {}
+#endif
+
+#endif /* __KERNEL__ */
+
 #endif /* _ASM_POWERPC_PS3FB_H_ */